package Package1;//import java.util.Scanner;
//public class Test2{
//    public static void main(String[] args) {
//        Scanner scan = new Scanner(System.in);
//
//        double length = scan.nextDouble();
//        double wide = scan.nextDouble();
//        Rectangle r = new Rectangle(length,wide);
//        System.out.printf("%.2f ",r.getPerimeter());
//        System.out.printf("%.2f",r.getArea());
//        System.out.println();
//        length = scan.nextDouble();
//        wide = scan.nextDouble();
//        double height = scan.nextDouble();
//        Cuboid  c = new Cuboid (length, wide, height);
//        System.out.printf("%.2f ",c.getPerimeter());
//        System.out.printf("%.2f ",c.getArea());
//        System.out.printf("%.2f",c.getVolume());
//
//        scan.close();
//    }
//}
//
///* 你的代码被嵌在这里 */
//class Rectangle{
//    public double length;
//    public double wide;
//    public Rectangle(double length,double wide){
//        this.length=length;
//        this.wide=wide;
//    }
//    public double getPerimeter(){
//        return 2*(length+wide);
//    }
//    public double getArea(){
//        return length*wide;
//    }
//
//}
//class Cuboid extends Rectangle{
//    private double height;
//    public Cuboid(double length,double wide,double height){
//        super(length,wide);
//        this.height=height;
//    }
//    public double getVolume(){
//        return super.getArea()*height;
//    }
//    public double getPerimeter(){
//        return (height+length+wide)*4;
//    }
//    public double getArea(){
//        return 2*(length*wide+length*height+wide*height);
//    }
//}

import java.util.Scanner;

interface Shape {
    double length();
}

class Triangle implements Shape {
    private double a, b, c;
    public Triangle(double a, double b, double c) {
        this.a = a;
        this.b = b;
        this.c = c;
    }
    public double length() {
        if (a <= 0 || b <= 0 || c <= 0) return 0;
        if (a + b > c && a + c > b && b + c > a) {
            return a + b + c;
        }
        return 0;
    }
}

class Rectangle implements Shape {
    private double length, width;
    public Rectangle(double length, double width) {
        this.length = length;
        this.width = width;
    }
    public double length() {
        if (length <= 0 || width <= 0) return 0;
        return 2 * (length + width);
    }
}

class Circle implements Shape {
    private double radius;
    public Circle(double radius) {
        this.radius = radius;
    }
    public double length() {
        return (radius > 0?2 * 3.14 * radius:0);
    }
}

public class Test2 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
//        double a,b,c;
//        a = scanner.nextDouble();
//        Circle circle = new Circle(a);
//        System.out.printf("%.2f\n", circle.length());
//
//        a = scanner.nextDouble();
//        b = scanner.nextDouble();
//        Rectangle rectangle = new Rectangle(a, b);
//        System.out.printf("%.2f\n", rectangle.length());
//
//        a = scanner.nextDouble();
//        b = scanner.nextDouble();
//        c = scanner.nextDouble();
//        Triangle triangle = new Triangle(a, b, c);
//        System.out.printf("%.2f\n", triangle.length());
//        scanner.close();
        int codePoint = 65; // 对应字符 'A'
        System.out.println((char) codePoint);
    }
}